“Donizetti” pocket envelopes are
made from Duralong Cotton
paper glued on two sides with a
pH neutral adhesive, ideal for vertical
storage. Thanks to the slightly longer
rear flap, it is possible to number and mark the
artefact stored inside the envelope.
TECHNICAL SPECIFICATIONS
• 100% pure cotton fibre
• Unbuffered
• pH 6.7 - 7,0
• Non-calendered surface to allow greater air flow
• Sulfur <0,0001%